背包问题 ........\Debug ........\.....\bag.exe ........\.....\bag.ilk ........\.....\bag.obj ........\.....\bag.pch ........\.....\bag.pdb ........\.....\vc60.idb ........\.....\vc60.pdb ........\bag.cpp ........\bag.dsp ........\bag.dsw ........\bag.exe ........\bag.ncb ........\bag.opt ........\bag.plg